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Emissions trading - Wikipedia, the free encyclopedia

Emissions trading or cap and trade ("cap" meaning a legal limit on the quantity of a certain type of chemical an economy can emit each year is a market-based approach used to control pollution by providing economic incentives for achieving reductions in t...

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上班剛一周,剛穿上警服的小五決定犒勞犒勞自己,到劇院看電影。買票的隊伍排得長長的,小五舒口氣,排到最後。“新警察吧?”旁邊一個人問。小五納悶:“你咋知道?” “咳,老警察哪有排隊買票的。” “哦。...

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